Is he worried someone might see under her skirt? I somewhat suspect that is the case and she is being a bit annoyed over this overprotective attitude.

Also, I somewhat feel like her legs are being a bit too spread apart considering the angle they are in but that may be an illusion due to her posture. :/

Still, it feels like a slight error.

I walked 'round the museum yeaterday, coulda sworn I saw this.